Sabbir Hasan Roman

• Username: 3★roman_emper0r
• Country:  Bangladesh
• Student/Professional:Student
• Institution:University of Rajshahi Bangladesh
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 36

Current Ratings Graph Old Ratings Graph

1672 (-17)RatingProvisional
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Starters 163 (Rated)(2024-12-04 22:00:02)

Global Rank:   1012

Cheated in:   

Ratings System Update

(2024-12-04 22:00:02)

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1608 (-21)RatingProvisional
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Starters 69 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   120

Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

Learning Paths (0)

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Practice Paths (0)

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Contests (36)

July Challenge 2020 Division 2

Missing a Point, Chef and Card Game, Chef and Strings, Ada King

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess

September Challenge 2020 Division 2

A Problem on Sticks, Ada Matrix

July Cook-Off 2020 Division 2

Even-tual Reduction

June Lunchtime 2020 Division 2

Increasing Decreasing, Chef and Demonetisation

October Challenge 2020 Division 2

Positive AND, Covid Run, Chef and Easy Queries

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian

September Cook-Off 2020 Division 2

Bowling Strategy

September Lunchtime 2020 Division 2

GCD operations, Watermelon

Code Ensemble (Rated for Division 2)

Priya and AND

January Challenge 2021 Division 3

Point Of Impact, Encoded String, Chef and Division 3, Fair Elections

February Challenge 2021 Division 3

Chef and Meetings, Maximise Function, Highest Divisor

March Cook-Off 2021 Division 3

Consecutive Deletions, Pawri Meme, Weight Balance

CodeChef Div 3 Rated Contest 2021 Division 3

Body Mass Index, Total Score

March Challenge 2021 Division 3

Space Arrays, No Time to Wait, Chef and Groups, Interesting XOR!

March CodeChef Starters 2021 Division 2 (Unrated)

Nobel Prize

April Challenge 2021 Division 2

Chef and Dice

May Challenge 2021 Division 2 (Rated)

Golf, Solubility

CodeChef Starters 26 Division 2 (Unrated)

Stone Game

Starters 39 Division 2 (Rated)

Compress the Video, Closest Vowels

May Long Two 2022 Division 2 (Unrated)

Make them Zero

Starters 41 Division 2 (Rated)

Path Parity, Is this priority or parity!, Equal Integers, Remove and Add

June Cook-Off 2022 Division 2 (Rated)

Simple XOR, Break the Stick, Throw and Take

Starters 42 Division 2 (Rated)

Minimum or Maximum, Divisible by 3

Starters 45 Division 2 (Rated)

Even Equal Odd, Xor and Multiply, Retrieve the Array, Adjacent Sum Parity

Starters 46 Division 2 (Rated)

Sort the String

September Long 2022 Division 2 (Unrated)

Speed Limit Test

Starters 63 Division 2 (Rated)

One-XOR Deletions, Make Length 1

Starters 66 Division 2 (Rated)

Good Binary Strings, Palindrome by Splitting, Just Like Mob!

Starters 68 Division 2 (Rated)

Expense List, Make Money

Starters 69 Division 3 (Rated)

Akash and Dinner, Convert to permutation, Distinct Sequence

Starters 70 Division 2 (Rated)

Frequency Array Retrieval, Minimum distance between 1s, Prime Reversal

Starters 71 Division 3 (Rated)

Pet Store, Flip the Prefix, Snapchat, Perfect Trio, Maximizing LCS

Starters 77 Division 2 (Rated)

Concat Palindrome, K Increment Palindrome, Three Numbers

Starters 78 Division 2 (Rated)

Valid Expression

Starters 79 Division 2 (Rated)

Distinct Opposite Sums, Add smallest prime factor, One Stone or Two Stones

Starters 80 Division 2 (Rated)

Permutation Subsequence, Prefix Permutation, Equal Elements

Starters 132 Division 2 (Rated)

ALIEN-OR, Optimal Flip, GAME 11

Starters 141 Division 2 (Rated)

Redundant Array

Starters 142 Division 2 (Rated)

Chef loves Pizza Chef loves halfs, Array Removal, Number Hunt

Starters 163 (Rated)

Nice Array, Minimum Types

Total Problems Solved: 116